PIC18F6723-E/PT - 128KB Flash 8-bit MCU, 64-TQFP | Microchip
MPN: PIC18F6723-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.45 | $18.45 |
| 10 | $17.2 | $172.00 |
| 100 | $15.8 | $1,580.00 |
| 500 | $14.5 | $7,250.00 |
| 1,000 | $13.1 | $13,100.00 |
PIC18F6723-E/PT Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control. The PIC18 family sits in Microchip's mid-range performance tier, above PIC16 and PIC12 in code density, peripheral count and addressing capability, but below the 16-bit dsPIC and 32-bit PIC32 families. PIC MCUs are widely used in industrial, automotive and consumer embedded systems where reliability, predictable interrupt latency and long product life cycles matter more than raw MHz.
Key differentiating features of the PIC18F6723 include 128KB self-programmable Flash, 1024 bytes of data EEPROM for non-volatile parameter storage, four 16-bit timer/counters, two Capture/Compare/PWM modules, two Enhanced USARTs, two MSSP peripherals supporting SPI and I2C, and a 12-bit ADC with up to 12 channels. The 'E' suffix denotes the extended industrial temperature grade of -40C to +125C, and the /PT suffix designates the 64-pin TQFP package.
Architecturally, the device uses a 16-bit instruction word with an 8-bit data path and a hardware multiplier, providing linear code density and deterministic interrupt response. nanoWatt Technology power management offers multiple idle and sleep modes with wake-up sources, making the part suitable for energy-conscious designs.
Typical applications include industrial control panels, automotive body and HVAC subsystems, USB peripherals (with on-chip USB on derivative parts), graphical user interfaces driving LCDs, sensor aggregation nodes, and consumer appliances. The 54 I/O pins and dual serial interfaces suit designs that must bridge multiple sensors and actuators while maintaining low BOM cost.
When designing with this part, budget decoupling capacitance at every VDD/VSS pair and follow Microchip's recommended 4-layer layout for the 64-pin TQFP. Ensure the MCLR pin has the proper external reset network and that PGD/PGC traces are short for reliable in-circuit debugging with MPLAB tools.
This page synthesizes distributor pricing, drop-in alternatives and practical design notes that go beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for PIC18F6723-E/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F6723-E/PT (same form factor and footprint) — differing in Core Architecture, Timers, ADC, Package, Capture/Compare/PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F8723-E/PT
✅ Drop-In✓ In Stock
$6.78 / Unit
View Datasheet →PIC18F6722-E/PT
✅ Drop-In✓ In Stock
$10.1 / Unit
View Datasheet →PIC18F6623-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F6720-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F6628-E/PT
✅ Drop-In✓ In Stock
$5.54 / Unit
View Datasheet →PIC18F6627-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F6723-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 128 KB (64K x 16) |
| SRAM | 4 KB |
| Data EEPROM | 1024 bytes |
| Maximum Clock Frequency | 40 MHz |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 54 |
| ADC | 12-bit, up to 12 channels |
| Timers | 4 x 16-bit |
| Capture/Compare/PWM | 2 ECCP modules |
| Serial Interfaces | 2x EUSART, 2x MSSP (SPI/I2C) |
| Package | 64-pin TQFP (10x10 mm) |
| Operating Temperature | -40 C to +125 C (Extended, 'E' suffix) |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
PIC18F6723-E/PT Pin Configuration
| Pin 1 | RF7/AN7 — Digital I/O / analog input channel 7 |
| Pin 2 | RF6/AN6 — Digital I/O / analog input channel 6 |
| Pin 3 | RF5/AN5 — Digital I/O / analog input channel 5 |
| Pin 4 | RF4/AN4 — Digital I/O / analog input channel 4 |
| Pin 5 | RF3/AN3 — Digital I/O / analog input channel 3 |
| Pin 6 | RF2/AN2 — Digital I/O / analog input channel 2 |
| Pin 7 | RF1/AN1 — Digital I/O / analog input channel 1 |
| Pin 8 | RF0/AN0 — Digital I/O / analog input channel 0 |
| Pin 9 | AVDD — Analog positive supply |
| Pin 10 | AVSS — Analog ground reference |
| Pin 11 | NC — Not connected |
| Pin 12 | NC — Not connected |
| Pin 13 | OSC1/CLKIN — Oscillator crystal input / external clock |
| Pin 14 | OSC2/CLKOUT — Oscillator crystal output |
| Pin 15 | RA0/AN0 — PORTA digital I/O / analog input |
| Pin 16 | RA1/AN1 — PORTA digital I/O / analog input |
| Pin 17 | RA2/AN2 — PORTA digital I/O / analog input |
| Pin 18 | RA3/AN3 — PORTA digital I/O / analog input |
| Pin 19 | RA4/T0CKI — PORTA I/O / Timer0 clock input |
| Pin 20 | RA5/AN4 — PORTA I/O / analog input |
| Pin 21 | VSS — Ground reference |
| Pin 22 | VDD — Positive supply voltage |
| Pin 23 | RB0/INT0 — PORTB I/O / external interrupt 0 |
| Pin 24 | RB1/INT1 — PORTB I/O / external interrupt 1 |
| Pin 25 | RB2/INT2 — PORTB I/O / external interrupt 2 |
| Pin 26 | RB3/INT3 — PORTB I/O / external interrupt 3 |
| Pin 27 | RB4/KBI0 — PORTB I/O / keyboard interrupt 0 |
| Pin 28 | RB5/KBI1 — PORTB I/O / keyboard interrupt 1 |
| Pin 29 | RB6/KBI2/PGC — PORTB I/O / ICSP clock |
| Pin 30 | RB7/KBI3/PGD — PORTB I/O / ICSP data |
| Pin 31 | RC0/T1OSO/T1CKI — PORTC I/O / Timer1 oscillator output |
| Pin 32 | RC1/T1OSI — PORTC I/O / Timer1 oscillator input |
| Pin 33 | RC2/CCP1 — PORTC I/O / Capture Compare PWM 1 |
| Pin 34 | RC3/SCK/SCL — PORTC I/O / SPI/I2C clock |
| Pin 35 | RC4/SDI/SDA — PORTC I/O / SPI data in / I2C data |
| Pin 36 | RC5/SDO — PORTC I/O / SPI data out |
| Pin 37 | RC6/TX/CK — PORTC I/O / EUSART TX / clock |
| Pin 38 | RC7/RX/DT — PORTC I/O / EUSART RX / data |
| Pin 39 | RD0 — PORTD digital I/O bit 0 |
| Pin 40 | RD1 — PORTD digital I/O bit 1 |
| Pin 41 | RD2 — PORTD digital I/O bit 2 |
| Pin 42 | RD3 — PORTD digital I/O bit 3 |
| Pin 43 | RD4 — PORTD digital I/O bit 4 |
| Pin 44 | RD5 — PORTD digital I/O bit 5 |
| Pin 45 | RD6 — PORTD digital I/O bit 6 |
| Pin 46 | RD7 — PORTD digital I/O bit 7 |
| Pin 47 | VSS — Ground reference |
| Pin 48 | VDD — Positive supply voltage |
| Pin 49 | RE0/RD — PORTE I/O / parallel slave port read |
| Pin 50 | RE1/WR — PORTE I/O / parallel slave port write |
| Pin 51 | RE2/CS — PORTE I/O / parallel slave port chip select |
| Pin 52 | VDD — Positive supply voltage |
| Pin 53 | VSS — Ground reference |
| Pin 54 | RG0 — PORTG digital I/O bit 0 |
| Pin 55 | RG1 — PORTG digital I/O bit 1 |
| Pin 56 | RG2 — PORTG digital I/O bit 2 |
| Pin 57 | RG3 — PORTG digital I/O bit 3 |
| Pin 58 | RG4 — PORTG digital I/O bit 4 |
| Pin 59 | MCLR — Master clear reset input (active low) |
| Pin 60 | VDD — Positive supply voltage |
| Pin 61 | VSS — Ground reference |
| Pin 62 | RH0 — PORTH digital I/O bit 0 |
| Pin 63 | RH1 — PORTH digital I/O bit 1 |
| Pin 64 | RH2 — PORTH digital I/O bit 2 |
Typical Applications
PIC18F6723-E/PT is suitable for 7 applications: Industrial Control Panels, Automotive Body and HVAC Modules, Home Appliance Controllers, Medical Monitoring Devices, Sensor Aggregation Nodes, Consumer Appliance User Interfaces, Data Acquisition and Logging.
Industrial Control Panels
The PIC18F6723-E/PT fits industrial HMI and control panel designs where 54 I/O pins are needed to drive key matrices, scan keypads and read multiple sensor inputs without external I/O expanders. Its 128 KB Flash accommodates large state-machine lookup tables, while the 4 KB SRAM buffers LCD frame data for 320x240 graphical displays. The 4.2-5.5 V supply aligns with 5 V industrial backplanes and the extended -40 to +125 C grade tolerates cabinet environments.
Recommended
Automotive Body and HVAC Modules
In automotive body controllers and HVAC head units the PIC18F6723-E/PT drives stepper motors for HVAC blend doors via its ECCP modules and reads NTC thermistor inputs through the 12-bit ADC. The extended -40 to +125 C temperature grade handles under-dash thermal stress. The four 16-bit timers generate the precise PWM frequencies required for blower motor control, and the two EUSARTs interface with LIN or K-Line buses for body-network communication.
Recommended
Home Appliance Controllers
Washing machines, dishwashers and induction cooktops use the PIC18F6723-E/PT to coordinate motor inverters, sensor feedback and user interfaces in a single chip. The 1024-byte EEPROM stores user preference settings and last-cycle state across power cycles. The 12-bit ADC reads temperature, current and water-level sensors directly, while the MSSP peripherals drive SPI LCDs or I2C keypads, reducing BOM cost versus a multi-chip implementation.
Recommended
Medical Monitoring Devices
Battery-powered patient monitors and point-of-care diagnostics use the PIC18F6723-E/PT for low-power signal conditioning and display driving. The nanoWatt Sleep mode drops quiescent current below 100 nA when idle, preserving battery life between measurements, while the 12-bit ADC captures pulse oximeter, ECG or temperature signals at adequate resolution. The large Flash supports firmware with on-board FFT or trend-analysis algorithms.
Recommended
Sensor Aggregation Nodes
In building-automation sensor nodes the PIC18F6723-E/PT aggregates multiple analog and digital sensor channels and reports the consolidated data over RS-485, RS-232 or I2C back to a central controller. The 54 I/O lines accept several analog inputs plus digital I/O for occupancy, CO2 and humidity sensors. Its deterministic interrupt response makes it suitable for time-synchronized industrial-sensor protocols.
Recommended
Consumer Appliance User Interfaces
Coffee machines, microwave ovens and smart thermostats employ the PIC18F6723-E/PT to drive graphical LCDs, capacitive touch keypads and rotary encoders. The large Flash holds multi-language UI strings and bitmap assets, while the 4 KB SRAM serves as a frame buffer for small monochrome displays. The dual MSSP peripherals enable simultaneous SPI LCD data and I2C touch-controller communication without bus contention.
Recommended
Data Acquisition and Logging
Multi-channel data loggers use the PIC18F6723-E/PT to sample up to 12 analog inputs at 12-bit resolution, store readings in the 4 KB SRAM buffer and periodically flush to external EEPROM or SD cards via SPI. The RTC with its own dedicated timer runs continuously even in Sleep mode for accurate timestamp logging. Two EUSARTs allow simultaneous GPS data input and remote telemetry output.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F6723-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F8723-E/PT | PIC18F6722-E/PT | PIC18F6623-E/PT | PIC18F6720-E/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 256 KB | 128 KB | 64 KB | 128 KB |
| SRAM | 4 KB | 8 KB | 4 KB | 4 KB | 4 KB |
| Data EEPROM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| Maximum Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| I/O Pins | 54 | 70 | 54 | 54 | 54 |
| ADC | 12-bit, 12 ch | 12-bit, 16 ch | 12-bit, 12 ch | 12-bit, 12 ch | 10-bit, 12 ch |
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
Key Differentiators
- Highest Flash density within the 128 KB PIC18F6723 family tier (vs PIC18F6623-E/PT)
- Extended temperature grade vs industrial-only grade (vs PIC18F6723-I/PT)
- Same package and pinout as the 256 KB PIC18F8723 family (vs PIC18F8723-E/PT)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor as close as possible to every VDD/VSS pair on the 64-TQFP, plus a single 10 uF bulk tantalum or ceramic on the main supply rail. The PIC18F6723 has four VDD pins and four VSS pins that must all be connected even if a particular pin appears unused - floating supply pins can trigger spurious reset events. For noise-sensitive analog designs add a ferrite bead between digital and analog VDD rails.
Keep the ICSP traces (PGD on RB7 and PGC on RB6) shorter than 50 mm and avoid routing them near switching signals or analog inputs - long PGD/PGC traces degrade in-circuit programming reliability. Place the MCLR pull-up resistor (typically 10 kohm) within 5 mm of the MCLR pin and add a 100 nF cap to ground for noise immunity. For the 64-TQFP use a 4-layer PCB with continuous ground plane under the part for best EMC performance.
Configuration bits must be programmed correctly: disable the watchdog only if your firmware explicitly handles the WDT, set the oscillator mode to HS or EC for >4 MHz crystals, and enable the brown-out reset (BOR) at a voltage below your minimum operating VDD. Failure to enable BOR is a common cause of POR-related field failures. Verify the LVP (low-voltage programming) configuration bit matches your programming hardware - mismatch can lock the part in production.
When using the ADC, average multiple conversions in software to reduce the effect of single-sample noise on the LSBs. Use the ACQT and ADCS bits to set adequate acquisition and conversion times relative to the analog source impedance - for source impedances above 2 kohm add an external buffer op-amp such as the MCP6001. Place analog inputs physically separated from switching signals on the PCB and surround the analog traces with a ground guard ring.
Compliance Information
RoHS compliant with Pb-free matte-tin finish per Microchip product page. The 'E' grade provides -40C to +125C operation but is NOT qualified to AEC-Q100; for AEC-Q100 automotive applications consult the PIC18F6723-E/PT automotive PCN literature.
